Thats a good one, Gil Tene is really a good speaker. For anyone who (like me) thinks: "structs are just classes without methods, why are they faster?". The answ

Thats a good one, Gil Tene is really a good speaker. For anyone who (like me) thinks: "structs are just classes without methods, why are they faster?". The answer is that this is about arrays, which are currently slow in Java because they are: - mutable: elements can be changed, nulled etc. - polymorphic: they can contain T or subtype-of-T This makes fast streaming of objects impossible, because you need to deref the object. If this changes, object addresses can be calculated like in C, which makes things fast - flat memory is fast, prefetchers work their magic.